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Winter hack: Textured rubber that grips slick, icy surfaces
Researchers from Canada are developing new methods to mass-produce a material that may help pedestrians get a better grip on slippery surfaces after such storms.
Coping with the anthropocene: How we became nature
Overpopulation, the greenhouse effect, warming temperatures and overall climate disruption are all well recognized as a major threat to the ecology and biodiversity of the Earth. The issue of humankind's negative impact on the environment, albeit hotly debated and continuously present in the public eye, still only leads to limited policy action.
Climate change: Scientist investigates changing sea levels
The sea level has been rising by an average of 3.1 millimeters a year since 1993. Long-term measurements recorded since the start of the 20th century indicate an acceleration in the averaged sea level change. Coastal flooding and land loss are just some of the potential consequences.
Green screen or smokescreen? Hollywood's messages about nature and the environment
A new study has revealed the dual and conflicting messages in commercial films for young audiences about pivotal environmental problems and their potential resolution.
Morning is the time for powerful lightning
Wherever you are, if it's 8 a.m. it’s time for the kids to be in school, time perhaps for a second cup of coffee, and time for the most powerful lightning strokes of the day. Not the largest number of lightning flashes, just the most powerful.
East Antarctica melting could be explained by oceanic gateways
Researchers have discovered two seafloor gateways that could allow warm ocean water to reach the base of Totten Glacier, East Antarctica's largest and most rapidly thinning glacier. The discovery probably explains the glacier's extreme thinning and raises concerns about how it will affect sea level rise.
Past warming increased snowfall on Antarctica, affecting global sea level
A new study confirms that snowfall in Antarctica will increase significantly as the planet warms, offsetting future sea level rise from other sources -- but the effect will not be nearly as strong as many scientists previously anticipated because of other, physical processes.
Summer storm weakening leads to more persistent heat extremes
Storm activity in large parts of the US, Europe and Russia significantly calmed down during summers over the past decades, but this is no good news. The weakening of strong winds associated with the jetstream and weather systems prolongs and hence intensifies heat extremes like the one in Russia in 2010 which caused devastating crop failures and wildfires.
Epoch-defining study pinpoints when humans came to dominate planet Earth
The human-dominated geological epoch known as the Anthropocene probably began around the year 1610, with an unusual drop in atmospheric carbon dioxide and the irreversible exchange of species between the New and Old Worlds, according to new research.
Saturn moon's ocean may harbor hydrothermal activity, spacecraft data suggest
NASA's Cassini spacecraft has provided scientists the first clear evidence that Saturn's moon Enceladus exhibits signs of present-day hydrothermal activity which may resemble that seen in the deep oceans on Earth. The implications of such activity on a world other than our planet open up unprecedented scientific possibilities.
Blue blood on ice: How an Antarctic octopus survives the cold
An Antarctic octopus that lives in ice-cold water uses an unique strategy to transport oxygen in its blood, according to new research. The study suggests that the octopus's specialized blood pigments could help to make it more resilient to climate change than Antarctic fish and other species of octopus.
NASA's Soil Moisture Mapper takes first 'SMAPshots'
Fresh off the recent successful deployment of its 20-foot (6-meter) reflector antenna and associated boom arm, NASA's new Soil Moisture Active Passive (SMAP) observatory has successfully completed a two-day test of its science instruments.
Same forces as today caused climate changes 1.4 billion years ago
Natural forces have always caused the climate on Earth to fluctuate. Now researchers have found geological evidence that some of the same forces as today were at play 1.4 billion years ago.
Friction means Antarctic glaciers more sensitive to climate change than we thought
A new study finds that incorporating Coulomb friction into computer models increases the sensitivity of Antarctic ice sheets to temperature perturbations driven by climate change.
Earth's climate is starting to change faster, new research shows
Earth is now entering a period of changing climate that will likely be faster than what's occurred naturally over the last thousand years, according to a new article, committing people to live through and adapt to a warming world.
Atmosphere above Africa: Clouds and aerosol measurements
From Saharan dust storms to icy clouds to smoke on the opposite side of the continent, the first image from NASA's newest cloud- and aerosol-measuring instrument, CATS, provides a profile of the atmosphere above Africa.
Evidence from glacier ice: Until it was banned, leaded gasoline dominated the humanmade lead emissions in South America
Leaded gasoline was a larger emission source of the toxic heavy metal lead than mining in South America - even though the extraction of metals from the region's mines historically released huge quantities of lead into the environment. Researchers have discovered evidence of the dominance of leaded gasoline based on measurements in an ice core from a Bolivian glacier. The scientists found that lead from road traffic in the neighboring countries polluted the air twice as heavily as regional mining from the 1960s onwards.
Stuck-in-the-mud plankton reveal ancient temperatures
New research showing how tiny creatures drifted across the ocean before falling to the seafloor and being fossilized has the potential to improve our understanding of past climates, scientists say.
Melting glaciers create noisiest places in ocean, study says
Researchers measure underwater noise in Alaskan and Antarctic fjords and find them to be the noisiest places in the ocean. This leads researchers to ask how animals such as whales and seals use the noise and what will happen to fjord ecosystems once the glaciers recede and the noise disappears.
NASA Ames reproduces the building blocks of life in laboratory
NASA scientists studying the origin of life have reproduced uracil, cytosine, and thymine, three key components of our hereditary material, in the laboratory. They discovered that an ice sample containing pyrimidine exposed to ultraviolet radiation under space-like conditions produces these essential ingredients of life.
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